Intelligent micro-nano bubble generating device

Abstract

The invention discloses an intelligent micro-nano bubble generating device, and relates to the technical field of micro-nano bubbles, the whole device comprises a convergence section, a throat pipe section, a diffusion section and a shell, and the throat pipe section is connected with an air inlet; the convergence section control assembly comprises two groups of first sealing plates and two groups of second sealing plates; the throat pipe section control assembly comprises two groups of third sealing plates and two groups of push rods; the diffusion section control assembly comprises two groups of fourth sealing plates and two groups of fifth sealing plates; the monitoring assembly is arranged on the shell and comprises a flow monitoring device and a pressure monitoring device. The device is simple in structure, the cone angle of the contraction section, the diameter of the throat pipe, the length of the throat pipe and the cone angle of the diffusion section can be adjusted at will, meanwhile, changes of water flow and water pressure in the hydrodynamic cavitation process are monitored in real time, the space cost caused by redundancy of fixing equipment and the economic cost needed by maintenance can be reduced, and the maintenance efficiency is improved. Related structures and process parameters can be adjusted according to the corresponding relation of the cone angle of the contraction section, the diameter of the throat pipe, the length of the throat pipe, the cone angle of the diffusion section, the water inlet pressure, the water inlet flow and the micro-nano bubble generation effect, customized production of the micro-nano bubbles is achieved, and the customized requirements of different scenes for the properties of the micro-nano bubbles are met.

Description

Technical Field

[0001] The present invention relates to the field of bubble generating equipment, and in particular to a micro-nano bubble intelligent generating device. Background Art

[0002] Micro-nano bubbles have strong mass transfer efficiency and can stay in water for a long time and slowly release gas. These characteristics have enabled them to be widely used in many fields such as degradation of organic pollutants in sewage, eutrophication control of water bodies, intensification of chemical reactions, and sorting of mineral particles. This has led to a significant increase in the demand for the use of micro-nano bubble generating devices in the above-mentioned fields.

[0003] Among the current existing technologies, the hydrodynamic cavitation device constructed based on the Venturi tube principle is highly favored in industrial production due to its advantages such as simple structure and low energy consumption. However, the traditional Venturi tube often adopts a fixed structural design, and its core parameters such as the convergent section cone angle, throat diameter and length, and diffusion section cone angle cannot be dynamically adjusted. This fixed structure makes it difficult for scientific researchers to systematically explore the influence of different parameter combinations on micro-nano bubble particle size distribution, concentration, stability and other indicators. At the same time, when faced with various complex working conditions, the conventional practice is to use multiple flow measurement devices in parallel, or to prepare multiple sizes of Venturi tubes in advance as spares. However, this method not only has a cumbersome measurement process and complex control procedures, but also requires a large number of components to cooperate, which greatly increases the measurement cost. At the same time, the Venturi tube with fixed geometric parameters also requires a certain amount of labor and economic costs for maintenance.

[0004] Based on this, it is necessary and feasible to develop an intelligent micro-nano bubble generating device. Summary of the Invention

[0005] The purpose of the present invention is to provide a micro-nano bubble intelligent generating device to solve the above-mentioned technical problems existing in the prior art.

[0006] To achieve the above objectives, in one aspect, the present invention provides a micro-nano bubble intelligent generating device, comprising:

[0007] A venturi tube body, wherein the venturi tube body is sequentially divided into a convergent section, a throat section, and a diffuser section along the water inlet direction, and an outer shell is provided on the outside of the venturi tube body;

[0008] A convergent section control assembly, comprising two sets of first sealing plates with sliding grooves disposed on their boundaries and two sets of second sealing plates with sliding rails disposed therein, the first sealing plates being tightly connected to the second sealing plates via a left U-shaped slider, and the first sealing plates being inserted into a left sliding groove symmetrically disposed at the left end of the housing portion;

[0009] A throat section control assembly, comprising two sets of third sealing plates and two sets of push rods. The third sealing plates are provided with retractable plates to control the extension and contraction of the third sealing plates. The third sealing plates are connected to the second sealing plates via a revolving pair.

[0010] A diffuser section control assembly, comprising two sets of fifth sealing plates with sliding grooves disposed on their boundaries and two sets of fourth sealing plates with sliding rails disposed therein, the fifth sealing plates being tightly connected to the fourth sealing plates via a right U-shaped slider, and the fifth sealing plates being inserted into the right sliding groove symmetrically disposed at the right end of the housing portion;

[0011] A monitoring assembly, comprising a flow monitoring device and a pressure monitoring device, wherein the flow monitoring device is disposed in the convergent section, and the pressure monitoring device is disposed in the convergent section, the throat section, and the divergent section;

[0012] The outer shell part is composed of an outer shell, two groups of symmetrically distributed left and right chutes, and a valve is provided at the water inlet for controlling the water inlet flow;

[0013] Among them, all valves, pressure detection devices, flow monitoring devices and motors are connected to the computer.

[0014] According to the micro-nano bubble intelligent generating device provided by the present invention, the convergence section control component includes:

[0015] First sealing plates, two groups of the first sealing plates are horizontally and symmetrically distributed on the inner side of the portion close to the convergent section, and the edges of the first sealing plates are provided with sliding grooves;

[0016] Second sealing plates, two groups of which are symmetrically distributed on the upper and lower sides of the convergent section. Slide rails are provided inside the second sealing plates. The cylindrical sleeves provided on the boundaries of the second sealing plates and the cylindrical blocks provided on the boundaries of the third sealing plates form a revolving pair, so that the second sealing plates and the third sealing plates can rotate relative to each other.

[0017] The left U-shaped slider has two symmetrical groups. The two groups of left U-shaped sliders are inserted into the two groups of left slide grooves provided on the upper and lower sides of the convergent section. A spring is provided in the slide groove, and the spring is always in a stretched state. The cylindrical part of the left U-shaped slider has the same inner diameter as the slide rail inside the second sealing plate, so that the two always keep a close fit during the movement, thereby ensuring the airtightness of the diffusion section control assembly during use. The first sealing plate, the second sealing plate and the third sealing plate form a Z-shaped structure connection, thereby controlling the diffusion section cone angle. This device can realize the diffusion section cone angle arbitrarily adjusted within the range of 3° to 90°;

[0018] There are two groups of first motors symmetrically distributed. The first motors are arranged on the outside of the left slide groove and are used to control the displacement of the first sealing plate in the left slide groove.

[0019] According to the micro-nano bubble intelligent generating device provided by the present invention, the throat section part includes:

[0020] The third sealing plate, two groups of the third sealing plates are symmetrically distributed in the middle of the throat section, and retractable plates are provided at both ends of the third sealing plate. The extension amount can be freely controlled by the third motor and the fourth motor, thereby realizing the extension and shortening of the third sealing plate, that is, controlling the length of the throat.

[0021] Two sets of push rods are symmetrically distributed above and below the throat section. These push rods directly interface with the second motor, which is tightly connected to the third sealing plate. Two sets of symmetrically distributed second motors are linear motors that drive the push rods vertically, thereby moving the third sealing plate upward or downward, enabling precise adjustment of the throat diameter. This device allows for arbitrary adjustment of the throat diameter between 2 mm and 70 mm.

[0022] An air inlet pipe runs through the outer shell and the third sealing plate and is used to introduce gas into the interior of the device during use of the device.

[0023] The third motor and the fourth motor are symmetrically distributed in two groups. The third motor and the fourth motor are arranged on both sides of the third sealing plate to control the extension and contraction of the third sealing plate.

[0024] According to the micro-nano bubble intelligent generating device provided by the present invention, the diffusion section part includes:

[0025] The fourth sealing plate, two groups of the fourth sealing plates are symmetrically distributed on the upper and lower sides of the diffuser section, a slide rail is provided inside the fourth sealing plate, and the cylindrical sleeve provided on the boundary of the fourth sealing plate and the cylindrical block provided on the boundary of the third sealing plate form a rotating pair, so that the fourth sealing plate and the third sealing plate can rotate relative to each other.

[0026] The fifth sealing plate, two groups of the fifth sealing plates are horizontally symmetrically distributed on the inner side close to the diffusion section, and the boundaries of the fifth sealing plates are provided with sliding grooves.

[0027] The right U-shaped slider has two symmetrical groups. The two groups of right U-shaped sliders are inserted into the two groups of right slide grooves provided on the upper and lower sides of the diffuser section. The slide grooves are provided with springs, and the springs are always in a stretched state. The cylindrical portion of the right U-shaped slider has the same inner diameter as the slide rail inside the fourth sealing plate, so that the two always maintain a tight fit during movement, thereby ensuring the airtightness of the diffuser section control assembly during use. The third sealing plate, the fourth sealing plate and the fifth sealing plate form a Z-shaped structure connection to control the diffuser section cone angle. This device can adjust the diffuser section cone angle arbitrarily between 3° and 90°.

[0028] There are two groups of fifth motors symmetrically distributed. The fifth motors are arranged outside the right slide groove and are used to control the displacement of the fifth sealing plate in the right slide groove.

[0029] According to the micro-nano bubble intelligent generating device provided by the present invention, the shell portion includes:

[0030] The shell is arranged outside the venturi tube body. During the use of the micro-nano bubble intelligent generating device, the liquid inside the shell is in a full state, which plays the role of a water seal and ensures the air tightness of the entire device.

[0031] The left slide groove is provided with two groups, which are symmetrically distributed on the upper and lower sides of the shell. The two groups of the first sealing plates are inserted into the left slide groove, and the horizontal movement of the first sealing plates inside the left slide groove can be controlled by the first motor.

[0032] The right slide groove is provided with two groups, which are symmetrically distributed on the upper and lower sides of the shell. The two groups of the fifth sealing plates are inserted into the right slide groove, and the horizontal movement of the fifth sealing plate inside the right slide groove can be controlled by the fifth motor.

[0033] According to the micro-nano bubble intelligent generating device provided by the present invention, the pressure monitoring device includes a pressure sensor, and the pressure sensor is arranged in the convergent section, the throat section and the diffuser section.

[0034] According to the micro-nano bubble intelligent generating device provided by the present invention, the flow monitoring device includes a flow meter, and the flow meter is installed in the convergent section.

[0035] According to the micro-nano bubble intelligent generating device provided by the present invention, the valve is installed at the water inlet end, and an electromagnetic valve that can be controlled by a controller is used to control the water inlet flow.

[0036] Compared with the prior art, the present invention has at least the following beneficial effects:

[0037] The present invention has a simple structure, is easy to use, and has precisely adjustable structural parameters. The device can achieve quantitative control of structural parameters such as the throat diameter, convergent section cone angle, and divergent section cone angle of the Venturi tube. It can provide equipment support for quantifying the structure-activity relationship between the structural parameters of the Venturi tube and the size and concentration of micro-nano bubbles generated by cavitation, effectively solving the technical problem of intelligent and precise customization of micro-nano bubbles. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 Schematic diagram of the structure of the micro-nano bubble intelligent generating device of the present invention.

[0040] Figure 2 This is a schematic structural diagram of the connection between the first sealing plate, the left U-shaped slider and the second sealing plate in the present invention.

[0041] Figure 3 It is a structural schematic diagram of the connection between the second sealing plate and the third sealing plate in the present invention.

[0042] Figure 4 Schematic diagram of the structure of the first sealing plate in the present invention

[0043] Figure 5 This is a schematic diagram of the structure of the left U-shaped slider in the present invention.

[0044] Figure 6 Schematic diagram of the structure of the second sealing plate in the present invention

[0045] Figure 7 Schematic diagram of the structure of the third sealing plate in the present invention with a retractable accordion plate

[0046] Figure 8 Schematic diagram of the structure of the third sealing plate provided with a retractable stretch plate in the present invention

[0047] Figure 9 Schematic diagram of the half-section structure of the shell in the present invention

[0048] Figure 10 This is a schematic diagram of the top view of the micro-nano bubble intelligent generating device of the present invention.

[0049] Among them, (1) Venturi tube body; (2) convergent section; (3) throat section; (4) diffuser section; (5) outer shell; (6) left slide; (7) first sealing plate; (8) left U-shaped slider; (9) second sealing plate; (10) third sealing plate; (11) push rod; (12) intake pipe; (13) fourth sealing plate; (14) right U-shaped slider; (15) fifth sealing plate; (16) right slide; (17) outer shell. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] Reference Figures 1-10 The present invention provides a micro-nano bubble intelligent generating device, comprising:

[0053] A venturi tube body (1), wherein the venturi tube body (1) is provided with a convergent section (2), a throat section (3), and a diffuser section (4) in sequence along the water inlet direction, and an outer shell (5) is provided on the outside of the venturi tube body (1);

[0054] A convergent section control assembly, the convergent section control assembly comprising two groups of first sealing plates (7) with sliding grooves provided at their boundaries and two groups of second sealing plates (9) with sliding rails provided therein, the first sealing plates (7) and the second sealing plates (9) being tightly connected via a left U-shaped slider (8), and the first sealing plates being inserted into a left sliding groove (6) symmetrically provided at the left end of the housing portion;

[0055] A throat section control assembly is provided, the throat section control assembly being composed of two groups of third sealing plates (10) and two groups of push rods (11); a retractable plate is provided in the third sealing plate (10) to control the extension and contraction of the third sealing plate; the third sealing plate is connected to the second sealing plate via a rotating pair.

[0056] A diffusion section control assembly, the diffusion section control assembly is composed of two groups of fourth sealing plates (13) with slide rails provided therein and two groups of fifth sealing plates (15) with slide grooves provided on their boundaries, the fifth sealing plates are tightly connected to the fourth sealing plates via a right U-shaped slider (14), and the fifth sealing plates are inserted into a right slide groove (16) symmetrically provided at the right end of the housing portion;

[0057] A monitoring component, comprising a flow monitoring device and a pressure monitoring device, wherein the flow monitoring device is arranged in the convergent section (2), and the pressure monitoring device is arranged in the convergent section (2), the throat section (3) and the divergent section (4).

[0058] The outer shell part is composed of an outer shell (17), two groups of symmetrically distributed left chutes (6) and right chutes (16), and a valve is provided at the water inlet for controlling the water inlet flow.

[0059] Among them, all valves, pressure detection devices, flow monitoring devices and motors are connected to the computer.

[0060] Before starting operation, the micro-nano bubble intelligent generating device needs to be fully inspected to ensure that the connections between the various components are seamless and undamaged, and that the convergent section control component, the throat section control component, the convergent section control component and the outer shell part (5) are all in normal working condition. After confirming that everything is correct, the power is turned on, the entire system is started, and each monitoring component begins to standby. According to the specific implementation requirements, the parameters of the micro-nano bubble generating device required are input on the controller, including the ideal throat diameter, the ideal throat radius, the convergent section cone angle and the divergent section cone angle, etc. These parameters will serve as the basis for the operation and adjustment of the device. After receiving the set ideal throat diameter parameters, the controller sends instructions to the throat section control component. The second motor is installed on the two groups of push rods (11) on the upper and lower sides of the throat section part (3). The second motor is a linear motor that can drive the two groups of push rods (11) to achieve vertical movement, and then drive the two groups of third sealing plates (10) to move upward or downward to achieve precise adjustment of the throat diameter. At the same time, the third motor and the fourth motor control the throat length to remain unchanged, the first motor and the third motor cooperate with each other to control the relative rotation between the two groups of first sealing plates (7), second sealing plates (9) and third sealing plates (10), and the fourth motor and the fifth motor cooperate with each other to control the relative rotation between the two groups of third sealing plates (10), fourth sealing plates (13) and fifth sealing plates (15), thereby achieving separate adjustment of the throat diameter while ensuring that the other parameters remain unchanged. After receiving the set ideal throat length parameter, the controller sends a command to the throat section control component. The third motor and the fourth motor are installed on both sides of the third sealing plate (10) to control the left and right movement of the two ends of the third sealing plate (10), thereby driving the extension and compression of the retractable plate set inside the throat, that is, accurately controlling the throat length. At the same time, the second motor controls the throat diameter to remain unchanged, the first motor and the third motor cooperate with each other to control the relative rotation between the two sets of first sealing plates (7), second sealing plates (9) and third sealing plates (10), and the fourth motor and the fifth motor cooperate with each other to control the relative rotation between the two sets of third sealing plates (10), fourth sealing plates (13) and fifth sealing plates (15), thereby ensuring that the throat length can be adjusted independently while other parameters remain unchanged. After receiving the set convergent section cone angle parameter, the controller sends a command to the convergent section control component. The first motor is arranged outside the two groups of left slide grooves (6) at the left end of the shell part (5) to control the lateral movement of the first sealing plate (7). The third motor is arranged on the left side of the third sealing plate (10) to control the extension and contraction of the third sealing plate. The two groups of motors cooperate with each other to control the relative position relationship between the first sealing plate (7), the second sealing plate (9) and the third sealing plate (10), that is, to control the convergent section cone angle. At the same time, the first motor controls the vertical movement of the push rod (11), thereby ensuring that the convergent section cone angle can be adjusted separately while other parameters remain unchanged.Similarly, after receiving the set diffusion section cone angle parameters, the controller sends instructions to the diffusion section control component. The fourth motor is set on the right side of the third sealing plate (10) to control the extension and contraction of the third sealing plate (10). The fifth motor is installed on the outside of the two groups of right slide grooves (16) at the right end of the shell part (5) to control the lateral movement of the fifth sealing plate (15). The two groups of motors cooperate with each other to control the relative position relationship between the third sealing plate (10), the fourth sealing plate (13) and the fifth sealing plate (15), that is, to control the diffusion section cone angle. At the same time, the first motor controls the vertical movement of the push rod (11), thereby ensuring that the diffusion section cone angle is adjusted separately while the other parameters remain unchanged. The motors that appear in the description of the specific implementation plan are all symmetrically arranged in two groups.

[0061] To further optimize the solution, the convergence section (2) components include:

[0062] First sealing plates (7), two groups of the first sealing plates (7) are horizontally and symmetrically distributed on the inner side close to the convergent section (2), and the boundaries of the first sealing plates (7) are provided with sliding grooves.

[0063] The second sealing plate (9) comprises two groups of the second sealing plates (9) symmetrically distributed on the upper and lower sides of the convergent section (2); a slide rail is provided inside the second sealing plate (9); a cylindrical sleeve provided on the boundary of the second sealing plate (9) and a cylindrical block provided on the boundary of the third sealing plate (10) form a rotating pair, so that the second sealing plate (9) and the third sealing plate (10) can rotate relative to each other.

[0064] The left U-shaped slider (8) has two symmetrical groups of U-shaped sliders (8). The two groups of left U-shaped sliders (8) are inserted into two groups of left slide grooves (6) provided on the upper and lower sides of the convergent section (2). A spring is provided in the slide groove, and the spring is always in a stretched state. The cylindrical portion of the left U-shaped slider (8) has the same inner diameter as the slide rail inside the second sealing plate (9), so that the two always keep a close fit during the movement, thereby ensuring the airtightness of the convergent section control component during use. The first sealing plate (7), the second sealing plate (9) and the third sealing plate (10) form a Z-shaped structure connection, thereby controlling the convergent section cone angle.

[0065] The first motor is symmetrically distributed in two groups. The first motor is arranged outside the left chute (6) and is used to control the displacement of the first sealing plate (7) in the left chute (6). The third motor and the fourth motor are arranged on both sides of the third sealing plate (10) and are used to control the extension and shortening of the two retractable plates inside the third sealing plate (10). When the convergence section cone angle needs to be adjusted, the controller sends a command to the convergence section control component, the first motor drives the first sealing plate (7) to move horizontally, and the third motor controls the third sealing plate (10) to remain stationary. At the same time, since the first sealing plate (7), the second sealing plate (9) and the third sealing plate (10) are connected in a Z-shaped structure, the relative movement of the first sealing plate (7) and the third sealing plate (10) will drive the second sealing plate (9) to rotate, thereby controlling the adjustment of the convergence section cone angle. At the same time, the controller will also send a command to the second motor to ensure that the convergence section cone angle is adjusted separately while ensuring that the other parameters remain unchanged. This device can achieve arbitrary adjustment of the convergence section cone angle within the range of 3° to 90°.

[0066] The size of the convergent section cone angle will change and affect factors such as flow velocity distribution, pressure drop characteristics, and flow stability. By adjusting the size of the convergent section cone angle, the measurement accuracy or drainage efficiency can be optimized.

[0067] Further optimization of the solution, some components of the throat section include:

[0068] The third sealing plate (10) is symmetrically distributed in the middle of the throat section with two sets of the third sealing plates (10). Both ends of the third sealing plate (10) are provided with retractable plates, and the extension amount can be freely controlled by the fourth motor and the fifth motor, thereby realizing the extension and contraction of the third sealing plate (10), that is, controlling the length of the throat.

[0069] Push rods (11), two groups of push rods (11) are symmetrically distributed on the upper and lower sides of the throat section (3), the push rods (11) are directly connected to the second motor, and the push rods (11) are tightly connected to the third sealing plate (10). The second motor is symmetrically distributed in two groups. The second motor is a linear motor that can drive the push rods (11) to move vertically, thereby driving the third sealing plate to move upward or downward, thereby achieving precise adjustment of the throat diameter. The device can achieve arbitrary adjustment of the throat diameter within the range of 2mm to 70mm.

[0070] The third motor and the fourth motor are symmetrically distributed in two groups. The third motor and the fourth motor are arranged on both sides of the third sealing plate (10) and are used to control the extension and contraction of the two retractable plates inside the third sealing plate (10).

[0071] When the throat diameter needs to be adjusted, the controller sends a command to the second motor, and the second motor drives the push rod (11) to move vertically, thereby driving the two sets of third sealing plates to move upward or downward, thereby achieving precise adjustment of the throat diameter. At the same time, the controller also sends a command to the first motor, the third motor, the fourth motor and the fifth motor, and the first motor and the third motor cooperate with each other to control the relative position relationship between the first sealing plate (7), the second sealing plate (9) and the third sealing plate (10), and the fourth motor and the fifth motor cooperate with each other to control the relative position relationship between the third sealing plate (10), the fourth sealing plate (13) and the fifth sealing plate (15), thereby ensuring that the throat diameter is adjusted independently while the other parameters remain unchanged.

[0072] When the throat length needs to be adjusted, the controller sends instructions to the third motor and the fourth motor, and the third motor and the fourth motor drive the two ends of the third sealing plate (10) to move left and right, driving the retractable plates arranged on both sides of the third sealing plate (10) to change shape. At the same time, the controller also sends instructions to the first motor, the second motor and the fifth motor, and the first motor and the third motor cooperate with each other to control the relative position relationship between the first sealing plate (7), the second sealing plate (9) and the third sealing plate (10), and the fourth motor and the fifth motor cooperate with each other to control the relative position relationship between the third sealing plate (10), the fourth sealing plate (13) and the fifth sealing plate (15), so as to ensure that the throat length is adjusted separately while the other parameters remain unchanged.

[0073] Further optimizing the solution, the diffuser section (4) components include:

[0074] A fourth sealing plate (13), two groups of the fourth sealing plates (13) are symmetrically distributed on the upper and lower sides of the diffusion section (4), a slide rail is provided inside the fourth sealing plate (13), and a cylindrical sleeve provided on the boundary of the fourth sealing plate (13) and a cylindrical block provided on the boundary of the third sealing plate (10) form a rotating pair, so that the fourth sealing plate (13) and the third sealing plate (10) can rotate relative to each other.

[0075] The fifth sealing plate (15) is horizontally and symmetrically distributed on the inner side of the diffusion section (4) of the two groups of the fifth sealing plates (15), and the boundaries of the fifth sealing plates (15) are provided with sliding grooves.

[0076] The right U-shaped slider (14) has two symmetrical groups. The two groups of right U-shaped sliders (14) are inserted into two groups of right slide grooves (16) provided on the upper and lower sides of the diffusion section (4). A spring is provided in the slide groove, and the spring is always in a stretched state. The cylindrical portion of the right U-shaped slider (14) has the same inner diameter as the slide rail inside the fourth sealing plate (13), so that the two always maintain a close fit during movement, thereby ensuring the airtightness of the diffusion section control assembly during use. The third sealing plate (10), the fourth sealing plate (13) and the fifth sealing plate (15) form a Z-shaped structure connection, thereby controlling the diffusion section cone angle.

[0077] The fifth motor is symmetrically distributed in two groups. The fifth motor is arranged outside the right slide groove (16) and is used to control the displacement of the fifth sealing plate (15) in the right slide groove (16). The third motor and the fourth motor are arranged on both sides of the third sealing plate (10) and are used to control the extension and contraction of the two retractable plates inside the third sealing plate (10). When the diffusion section cone angle needs to be adjusted, the controller sends a command to the diffusion section control component, the fifth motor drives the fifth sealing plate (15) to move horizontally, and the fourth motor controls the third sealing plate (10) to remain stationary. At the same time, since the third sealing plate (10), the fourth sealing plate (13) and the fifth sealing plate (15) are connected in a Z-shaped structure, the relative movement of the third sealing plate (10) and the fifth sealing plate (15) will drive the fourth sealing plate (13) to rotate, thereby controlling the adjustment of the diffusion section cone angle. At the same time, the controller will also send a command to the second motor to ensure that the diffusion section cone angle is adjusted separately while the other parameters remain unchanged. This device can adjust the diffusion section cone angle arbitrarily between 3° and 90°.

[0078] The size of the diffuser cone angle will affect factors such as flow separation risk, static pressure recovery efficiency and energy loss. By adjusting the size of the diffuser cone angle, the performance of the Venturi tube can be optimized.

[0079] According to a further optimized solution, the monitoring component includes a flow monitoring device and a pressure monitoring device, wherein the flow monitoring device is arranged in the convergent section (2), and the pressure monitoring device is arranged in the convergent section (2), the throat section (3) and the divergent section (4).

[0080] In a further optimized solution, the housing portion (5) comprises:

[0081] The outer shell (17) is arranged outside the venturi tube body (1) and acts as a water seal to ensure the airtightness of the entire device.

[0082] A left slide groove (6) is provided with two groups of left slide grooves, which are symmetrically distributed on the upper and lower sides of the shell. The two groups of the first sealing plates (7) are inserted into the left slide groove (6). The first sealing plates (7) can be controlled by a first motor to move horizontally inside the left slide groove (6).

[0083] The right slide groove (16) is provided with two groups of right slide grooves, which are symmetrically distributed on the upper and lower sides of the shell. The two groups of the fifth sealing plates (15) are inserted into the right slide groove (16). The horizontal movement of the fifth sealing plate (15) inside the right slide groove (16) can be controlled by the fifth motor.

[0084] According to a further optimized solution, the pressure monitoring device includes a pressure sensor, and the pressure sensor is arranged in the convergent section (2), the throat section (3), and the diffuser section (4).

[0085] According to a further optimized solution, the flow monitoring device comprises a flow meter, and the flow meter is installed in the convergent section (2).

[0086] A further optimized solution is that the valve is installed at the water inlet end, and an electromagnetic valve that can be controlled by a controller is used to control the water inlet flow.

[0087] To further optimize the solution, all valves, flow monitoring devices, pressure monitoring devices, and motors are connected to the computer.

[0088] Any details not provided in the present invention are all conventional technical means well known to those skilled in the art.

[0089] In the description of the present invention, it should be understood that the terms "left end", "right end", "both ends", "horizontal", "vertical", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0090] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art shall fall within the scope of protection defined by the claims of the present invention.

Claims

1. A micro-nano bubble intelligent generating device, characterized in that: include: A venturi tube body (1), wherein the venturi tube body (1) is provided with a convergent section (2), a throat section (3), and a diffuser section (4) in sequence along the water inlet direction, and an outer shell (5) is provided on the outside of the venturi tube body (1); A convergent section control assembly, the convergent section control assembly comprising two groups of first sealing plates (7) with sliding grooves provided at their boundaries and two groups of second sealing plates (9) with sliding rails provided therein, the first sealing plates (7) and the second sealing plates (9) being tightly connected via a left U-shaped slider (8), the first sealing plate (7) being inserted into a left sliding groove (6) symmetrically provided at the left end of the housing portion; A throat section control assembly, the throat section control assembly consisting of two groups of third sealing plates (10) and two groups of push rods (11), wherein the third sealing plates (10) are provided with retractable plates for controlling the extension and contraction of the third sealing plates; the third sealing plates are connected to the second sealing plates via a rotating pair; A diffusion section control assembly, the diffusion section control assembly is composed of two groups of fourth sealing plates (13) with slide rails provided therein and two groups of fifth sealing plates (15) with slide grooves provided on their boundaries, the fifth sealing plates (15) are tightly connected to the fourth sealing plates (13) via a right U-shaped slider (14), and the fifth sealing plates (15) are inserted into a right slide groove (16) symmetrically provided at the right end of the shell portion; A monitoring component, the monitoring component comprising a flow monitoring device and a pressure monitoring device, the flow monitoring device being arranged in the convergent section (2), and the pressure monitoring device being arranged in the convergent section (2), the throat section (3) and the divergent section (4); The outer shell portion is composed of an outer shell (17), two groups of symmetrically distributed left chutes (6) and right chutes (16), and a valve is provided at the water inlet for controlling the water inlet flow; Among them, all valves, pressure detection devices, flow monitoring devices and motors are connected to the computer.

2. A micro-nano bubble intelligent generating device according to claim 1, characterized in that: The convergence segment control component includes: First sealing plates (7), two groups of the first sealing plates (7) are horizontally and symmetrically distributed on the inner side close to the convergent section (2), and the boundaries of the first sealing plates (7) are provided with sliding grooves; A second sealing plate (9), two groups of the second sealing plates (9) are symmetrically distributed on the upper and lower sides of the convergent section (2), a slide rail is provided inside the second sealing plate (9), and a cylindrical sleeve provided on the boundary of the second sealing plate (9) and a cylindrical block provided on the boundary of the third sealing plate (10) form a rotation pair, so that the second sealing plate (9) and the third sealing plate (10) can rotate relative to each other; A left U-shaped slider (8), wherein the left U-shaped slider (8) has two symmetrical groups, and the two groups of the left U-shaped sliders (8) are inserted into two groups of left slide grooves (6) provided on the upper and lower sides of the convergent section (2). A spring is provided in the slide groove, and the spring is always in a stretched state. The cylindrical portion of the left U-shaped slider (8) has the same inner diameter as the slide rail inside the second sealing plate (9), so that the two always keep a close fit during the movement, thereby ensuring the airtightness of the convergent section control component during use; The first sealing plate (7), the second sealing plate (9) and the third sealing plate (10) are connected to form a Z-shaped structure, thereby controlling the convergent section cone angle. The device can achieve arbitrary adjustment of the convergent section cone angle within the range of 3° to 90°.

3. The micro-nano bubble intelligent generating device according to claim 1, characterized in that: The throat section control assembly comprises: A third sealing plate (10), two groups of the third sealing plates (10) are symmetrically distributed in the middle of the throat section, and retractable plates are provided at both ends of the third sealing plate (10), and the extension amount thereof can be freely controlled by the third motor and the fourth motor, thereby realizing the extension and shortening of the third sealing plate (10), that is, controlling the length of the throat; Push rods (11), two groups of push rods (11) are symmetrically distributed on the upper and lower sides of the throat section (3), the push rods (11) are directly connected to the second motor, and the push rods (11) are tightly connected to the third sealing plate (10); the second motor is a linear motor, which can drive the push rods (11) to move vertically, and then drive the third sealing plate to move upward or downward, so as to achieve precise adjustment of the throat diameter; The device can adjust the throat diameter arbitrarily within the range of 2mm to 70mm.

4. The micro-nano bubble intelligent generating device according to claim 1, characterized in that: The diffusion section control assembly includes: A fourth sealing plate (13), two groups of the fourth sealing plates (13) are symmetrically distributed on the upper and lower sides of the diffusion section (4), a slide rail is provided inside the fourth sealing plate (13), and a cylindrical sleeve provided on the boundary of the fourth sealing plate (13) and a cylindrical block provided on the boundary of the third sealing plate (10) form a rotation pair, so that the fourth sealing plate (13) and the third sealing plate (10) can rotate relative to each other; A fifth sealing plate (15), wherein two groups of the fifth sealing plates (15) are horizontally symmetrically distributed on the inner side close to the diffusion section (4), and a sliding groove is provided on the boundary of the fifth sealing plate (15); The right U-shaped slider (14) has two symmetrical groups. The two groups of right U-shaped sliders (14) are inserted into two groups of right slide grooves (16) provided on the upper and lower sides of the diffusion section (4). A spring is provided in the slide groove, and the spring is always in a stretched state. The cylindrical portion of the right U-shaped slider (14) has the same inner diameter as the slide rail inside the fourth sealing plate (13), so that the two always keep close contact during movement, thereby ensuring the airtightness of the diffusion section control assembly during use; The third sealing plate (10), the fourth sealing plate (13) and the fifth sealing plate (15) are connected in a Z-shaped structure, thereby controlling the diffusion section cone angle. The device can achieve arbitrary adjustment of the diffusion section cone angle within a range of 3° to 90°.

5. The micro-nano bubble intelligent generating device according to claim 1, characterized in that: The housing portion comprises: A housing (17) is provided outside the venturi tube body (1) and acts as a water seal to ensure the airtightness of the entire device; A left slide groove (6), wherein the left slide groove is provided with two groups, symmetrically distributed on the upper and lower sides of the shell, and the two groups of the first sealing plates (7) are inserted into the left slide groove (6), and the first sealing plates (7) can be controlled by a first motor to move horizontally inside the left slide groove (6); The right slide groove (16) is provided with two groups of right slide grooves, which are symmetrically distributed on the upper and lower sides of the shell. The two groups of the fifth sealing plates (15) are inserted into the right slide groove (16). The horizontal movement of the fifth sealing plate (15) inside the right slide groove (16) can be controlled by the fifth motor.

6. The micro-nano bubble intelligent generating device according to claim 1, characterized in that: The motor comprises: First motors, two of which are symmetrically distributed, are arranged outside the left slide groove (6) and are used to control the displacement of the first sealing plate (7) in the left slide groove (6); A second motor, wherein the second motor is symmetrically distributed in two groups, and the two groups of the second motor are connected to the two groups of the push rods (11) to control the vertical movement of the push rods (11) and thus control the vertical movement of the third sealing plate; A third motor and a fourth motor, the third motor and the fourth motor being symmetrically arranged on both sides of the third sealing plate (10), and being used to control the extension and contraction of the retractable plates arranged at both ends of the third sealing plate (10); The fifth motor is symmetrically distributed in two groups. The fifth motor is arranged outside the right slide groove (16) and is used to control the displacement of the fifth sealing plate (15) in the right slide groove (16).

7. The micro-nano bubble intelligent generating device according to claim 1, characterized in that: The pressure monitoring device comprises a pressure sensor, which is arranged in the convergent section (2), the throat section (3) and the divergent section (4).

8. The micro-nano bubble intelligent generating device according to claim 1, characterized in that: The flow monitoring device comprises a flow meter, which is installed in the convergent section (2).

9. The micro-nano bubble intelligent generating device according to claim 1, characterized in that: The valve is installed at the water inlet end and adopts an electromagnetic valve that can be controlled by a controller to control the water inlet flow.

10. The micro-nano bubble intelligent generating device according to claim 1, characterized in that: The retractable panels include accordion panels, well-sealed multi-layer push-pull panels, and the like.

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